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09-10-2025 22:14

Hymenoscphyus or Bryoscyphus? Yellow cup / white stipe
S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Amicodisca svrcekii ?
Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

Lophiostoma
David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

04-10-2025 02:13

Hymenoscyphus with a reddish stipe
Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

White asco on Fagus grandifolia leaf
Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

03-10-2025 22:03

Unknown asco found in a root hole
Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

03-10-2025 13:44

Unknown on Populus -> Pyxidiophora species
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

05-10-2025 16:41

Could this be Bacidina chloroticula in a mat of algae/lichens?
François Bartholomeeusen

Dear forum members, On a mat of dried algae/liche

04-10-2025 02:17

small disco
Masanori Kutsuna

Hello, This is a quite common species on rotten w

03-10-2025 10:25

chaetomium sp sur crotte lapin
Jean-Luc Ranger

Que pensez-vous de ce Chaetomium sp : 10- 10,5 x 6

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Gnomonia on Euphorbia
Enrique Rubio, 01-07-2013 14:24
Enrique RubioHi to all

This Gnomonia grew on stems of Euphorbia sp. at 1300 m of altitude. I think is closely related with Gnomonia palustris but their spores are greater than those described in Monod's monographie.
By the other hand I don't know what species of Euphorbia is but Euphorbia palustris is not present at this region. 
The perithecia of my collection are enough extenuate  when I have studied it
Thanks again for your opinion
  • message #24184
  • message #24184
Enrique Rubio, 01-07-2013 18:04
Enrique Rubio
Re : Gnomonia on Euphorbia
Definitively Euphorbia palustris is not reported from Asturias. It seems to be that only exists at at Gerona (NE of Spain)
Alain GARDIENNET, 02-07-2013 07:30
Alain GARDIENNET
Re : Gnomonia on Euphorbia
Hi Enrique, 

The genus Euphorbia is not easy, and the Gnomoniaceae on Euphorbia are perhaps bad known yet.

Clearly, your species is not G. palustris and is not  described in Monod. Perhaps you should search the description of Gnomonia petrophilae ? 
Alain
PS :  D. Walker is far away (Japan) this summer. We can't have his help.
Enrique Rubio, 02-07-2013 13:25
Enrique Rubio
Re : Gnomonia on Euphorbia
Thanks, Alain


Euphorbia petrophila don't exists at the Iberian peninsula